Binding-post.



G. A. H. CHURCHILL.

BINDING POST.

APPLICATION FILED AWL/4.1914.

1,152,7Q5. Patented Sept. 7, 1915.

zisses residin at Rumson GEORGE A. H.

CHURCHILL, F RUMSOFI, NEW JERSEY.

BINDING-POST.

31.3152, Fil h.

To all whom it may concern Be it known that I, GEORGE A. H. HURCHILL, a citizen of the United States,

in the county of Monmouth and State of New Jersey, have invented a new and useful Binding-Post of which the following is a specification.

his invent'on relates to a binding post I {and particularly to certain improvements in 3 devices,

shown in the drawings, together with evices for securing a wire thereto.

For many purposes it is essential that a binding post shall include means for securin'g itself to a supporting member in addition to devices for gripping and holding a wire or conductor attached thereto.

It is the principal object of my invention to provide an improved construction of binding post in which these two essential features are embodied in a single element.

in the preferred form of my invention the wire-securing portion is of resilient construction, and the conductor can be attached thereto without the use of tools of any sort.

lore specifically the preferred cludes a nut formed of one of said coils fitting and engaging the threaded stud and the other coil constituting resilient means for grip ingand holding the wire or conductor to he supported. y The device is equally adapted for holding a siiigle wire, or a plurality of wires. In the latter .1, one of the wires may be attached detached without interfering with the other wires.

My invention further comprises certain parts which will be hereinafter described and more specifically pointed outin the appended claims.

A. preferred form of my invention is certain modifications thereof.

. Figure 1 is an elevation of the preferred form of my improved binding post; Fig. 2 is a top plan view of the device shown in Fig. 1; ig. 3 a sectional view taken along the line 33.in Fig. 1; Fig. l is a view similar to Fig. lbut having the coils of the wire-securing tion; Fig. 5 is a side elevation showing a slightly different form of my invention; and Figs. 6, 'Land 8 are views similar to Fig. 4 but showing other modifications of the invention.

Specification of Letters Patent. Application filed August 4, 1914. Serial No. 855,047.

form ina device shown in sec- I Referring to Figs. 1 to 4,'it will be seen t at my improved binding post as there shown comprises two elements, a threaded stud A and a wire-securing device or bindng nut B mounted thereon. The device B 1s forn1ed of a single piece of wire and in he inner coil portion E shown in Fig. 2. diameter and pitch cor- 1s formed with its responding to the size of the threaded stud ingly hold aconductor /V inserted between its turns. The conductor assured. The coils C and are so spaced from each other, as shown in Fig. 4, that a wire W'if forced entirely inside of the coil will be held in firm contact between the turns of the coil D and one or more turns of the coil C. The threaded stud A may be any desired manner. In Fig. 1 the stud is shown as being driven or otherwise retained in a hole in the supporting member. In Fig. the threaded stud is shown as con"- stitutlng part ofa headed screw extending through a hole in a projecting lug L which may represent the carbon terminal of a battery. In this figure, the wire-securing de- L'. At the same time theouter coil-D is available for securing the wire or conductor, The outer turn of.

as 1n the other figures the coil D in Fig.

concentric coils'C andD areshortenedand Patented se t. v, acre.

mounted upon a supporting member S in w the end portion of the stud may at the same time be secured by the turns of the large coil at the upper end of the nut. In this form I have also shownthe outer free end of the Wire forming the coil as being slightly turned outwardly, similar to Fig. 5, but having the additional advantage that the free end permits a loop of the con ductor W to be slipped over the end and then passed downwardly along the coil.

A still simpler form of the device is shown inFig. 8 in which the entire coil is of one diameter, the coil extending beyond the stud to aiford opportunity for securing the con-v ductor thereto. This is a cheaper form and I for small conductors is found quite satisfactory.

The advantages of the binding post herein described will be apparent. No tools are required, either for attaching the device B to the stud A, or for securing the conductor W to the device B. Furthermore, the device occupies no more room than the ordinary screw and check nut most commonly used, as

and occupies much less room than the usual substitutes for that well known arrange ment. The device may also be cheaply manufactured and is equally adaptable for securing a single wire or a plurality of wires to asingle binding post.

7 While the diameter of the several portions of my improved binding post may be varied within rather wide limits, it will be evident that a certain more or less definite relation must exist between thesize of the wire, the size of the conductor, and the diameter of the turns of the wire-gripping portion of the device. In particular, this portion must be of such diameter with reference to the size of the conductor that the latter may be readily inserted between adjacent turns of said portion without permanently distorting thesame or giving them a permanent set. For commercial reasons the diameter of the stud and the stud-engaging; portion of the wire-securing device must be limited in.

order to'reduce the cost of these parts. Ac-

diiferent diameters as shown in Figs. 1 to '2' is most satisfactory.

Having thus described certain forms of my invention, it will be evident that other changes and modifications can be made therein by those skilled in the art without invention as set forth in the claims,

The lowersingle coil may be slightly eordingly it has been found formost purposes that a device having portions of two stud and a. nut, said departing from the spirit and scope of my and I do not wish to be limited to the details herein disclosed but Vi hat I claim is 1. A binding post comprising a stud, and a conductor securing device, said device comprising a single piece of wire formed in twb concentric coiled portions,-

the second portion being supported by the first portion and being of such diameterthat it is effective to grip and hold an electrical conductor insertedtransversely be-' tween adjacent coils thereof.

2. A binding post comprising a threaded formed of a 1 studand a nut, said nut being single piece of wire and comprising a portion engaging the stud, and a resilient coil integral therewith, said coil being oflarger diameter than said portion and being efiec one of said iportions eIlCllCllIlg and engaging said stud, andtive to grip and hold an electrical conductor, inserted transversely between adj acent turns thereof.

3. A binding post comprising a threaded stud and a nut, said niit oeing formed of a single piece of wire having one portion bent to form a close spiral coiliitting the thread v of said stud, and the remaining, portion'of said wire comprising a spiral coil of larger diameter and constituting. means for secure I in a conductor in electrical connection with said stud when inserted transverselybetween adjacent turns thereof.

' L. A binding post comprising a threaded:

stud and a nut, said nut being'composed of two concentric spiral coils of wire, the smaller coil fitting the thread of the stud and the larger coil being effective to grip and hold a conductorinserted between the turns thereof.

A binding post comprising a threaded stud and a nut, said nut being single piece of wire bent to. form two concentric spiral coils, the smaller coil fitting the thread upon the stud, and the larger coil being eii'ective to grip and hold a conductor inserted between the turns thereof.

6. A binding post comprising a threaded stud and a nut, said nut being formed of a single piece of wire bent to form concentric coils of diiierent sizes, the smaller coil fitting the threaded stud and corresponding in pitch and diameter thereto, and the other coils being effective to hold a conductor insertedbetween the turns thereof and also to bind a conductor against the surface upon which said stud is supported. 1 U

7. A binding post comprising a threaded nut being formed of a single piece of wire bent to form two concentric spiral coils. the inner coil fitting the thread upon the stud, and the outer coil in.- closing the first named coil and adjacent thereto, said coils being joined at one end formed. of a menses only, and said outer coil being closely Wound ans effective to grip a conductor inserted between the turns thereof.

8. A binding post comprising ethreaded stud and a nut, said nut being formed of a single piece of Wire bent to form twocon centric sfral coils, the inner coil fitting the thread upon the stud, and the outer coil in-- closing the first named coil and adjacenl tl'oreto, said outer coil being so spaced from the inner coil that a conductor inserted between'the two coils will. firmly contact with and be held by, one or more turns of each coil. v

9. A binding post comprising a threaded stud and a nut, said nut comprising a. coiled portion engaging the stud, and a resilient conductor-securing coil integral "therewith,

GEORGE A. H. CHURCHILL.

lVit-nesses:

FRANK LEE, EDWARD W. l VISE.

in the presence of two subscribing 30 

